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PDF CS8441XN8 Data sheet ( Hoja de datos )
| Número de pieza | CS8441XN8 | |
| Descripción | 85mA Dual H-Bridge Odometer Driver with Divide by Select | |
| Fabricantes | Cherry Semiconductor Corporation | |
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CS8441
85mA Dual H-Bridge Odometer Driver
with Divide by Select
Description
The CS8441 is a Stepper Motor
Driver that implements an H-Bridge
design in order to drive two coils in
an eight step sequence per revolu-
tion in the divide by 1 mode; 16 step
sequence in the divide by 2 mode.
The H-Bridge is capable of deliver-
ing 85mA to the load.
The sequencer insures that the
odometer is monotonic. This
sequencer is configured such that
simultaneous conduction does not
occur. Before each successive out-
put sequence the part is taken
through a state where both outputs
are turned off individually. This
tends to minimize the inductive
kick back energy that the part must
absorb. On chip clamp diodes are
across each output to protect the
part from the kick back energy that
it must absorb.
Additional part protection is pro-
vided by two functions. The first
being Òshort circuit protectionÓ.
This function will protect the part in
the case of a shorted or partially
shorted load. The second protection
function is the Òovervoltage func-
tionÓ. This function monitors the
level of the supply voltage. In tran-
sient conditions such as load dump,
the part will shut down, protecting
itself.
Features
s No Cross-conduction in
either H-bridge
s Divide by 1 and Divide
by 2 Mode
s Guaranteed Monotonic
s On Chip Flyback Diodes
s Fault Protection
Overvoltage
Load Dump Protection
to 60V
Absolute Maximum Ratings
Supply Voltage (VCC) (continuous) -40ûC to +105ûC ......................Ð0.5 to 24V
(100ms pulse transient) -40ûC to +105ûC ..........................Ð0.5 to 60V
Input Voltage (VIN) ..................................................................Ð0.3 to VCC +0.3V
Storage Temperature Range (TSTG).............................................-65¡C to 150¡C
Junction Temperature Range.......................................................Ð40¡C to 150¡C
ESD (Human Body Model) .............................................................................2kV
Lead Temperature Soldering
Wave Solder(through hole styles only).............10 sec. max, 260¡C peak
Package Options
8 Lead PDIP
VCC
SENSOR
Input
Comp.
Block Diagram
Coil
Driver
A
COILA+
COILA-
Gnd 1
COILA+
COILAÐ
SENSOR
VCC
COILB+
COILBÐ
SELECT
SELECT
Gnd
¸1
¸2
Sequencer
Overvoltage
and Short
Circuit
Protection
Coil
Driver
B
COILB+
COILB-
Rev. 9/2/92
1
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: [email protected]
Web Site: www.cherry-semi.com
A ¨ Company
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet CS8441XN8.PDF ] | |
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